1 files changed, 115 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/udisp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/udisp.c
new file mode 100644
index 000000000000..0841e7ce0343
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/udisp.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2021 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "priv.h"
+#include "conn.h"
+#include "outp.h"
+
+#include <nvif/class.h>
+#include <nvif/if0010.h>
+
+static int
+nvkm_udisp_sclass(struct nvkm_object *object, int index, struct nvkm_oclass *sclass)
+{
+	struct nvkm_disp *disp = nvkm_udisp(object);
+
+	if (index-- == 0) {
+		sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_CONN };
+		sclass->ctor = nvkm_uconn_new;
+		return 0;
+	}
+
+	if (index-- == 0) {
+		sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_OUTP };
+		sclass->ctor = nvkm_uoutp_new;
+		return 0;
+	}
+
+	if (disp->func->user[index].ctor) {
+		sclass->base = disp->func->user[index].base;
+		sclass->ctor = disp->func->user[index].ctor;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static int
+nvkm_udisp_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc)
+{
+	struct nvkm_disp *disp = nvkm_udisp(object);
+
+	if (disp->engine.subdev.device->card_type >= NV_50)
+		return nv50_disp_root_mthd_(object, mthd, argv, argc);
+
+	return nv04_disp_mthd(object, mthd, argv, argc);
+}
+
+static void *
+nvkm_udisp_dtor(struct nvkm_object *object)
+{
+	struct nvkm_disp *disp = nvkm_udisp(object);
+
+	spin_lock(&disp->client.lock);
+	if (object == &disp->client.object)
+		disp->client.object.func = NULL;
+	spin_unlock(&disp->client.lock);
+	return NULL;
+}
+
+static const struct nvkm_object_func
+nvkm_udisp = {
+	.dtor = nvkm_udisp_dtor,
+	.mthd = nvkm_udisp_mthd,
+	.ntfy = nvkm_disp_ntfy,
+	.sclass = nvkm_udisp_sclass,
+};
+
+int
+nvkm_udisp_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_object **pobject)
+{
+	struct nvkm_disp *disp = nvkm_disp(oclass->engine);
+	struct nvkm_conn *conn;
+	struct nvkm_outp *outp;
+	union nvif_disp_args *args = argv;
+
+	if (argc != sizeof(args->v0) || args->v0.version != 0)
+		return -ENOSYS;
+
+	spin_lock(&disp->client.lock);
+	if (disp->client.object.func) {
+		spin_unlock(&disp->client.lock);
+		return -EBUSY;
+	}
+	nvkm_object_ctor(&nvkm_udisp, oclass, &disp->client.object);
+	*pobject = &disp->client.object;
+	spin_unlock(&disp->client.lock);
+
+	args->v0.conn_mask = 0;
+	list_for_each_entry(conn, &disp->conns, head)
+		args->v0.conn_mask |= BIT(conn->index);
+
+	args->v0.outp_mask = 0;
+	list_for_each_entry(outp, &disp->outps, head)
+		args->v0.outp_mask |= BIT(outp->index);
+
+	return 0;
+}